Indicators are impact or performance measures that can reference datasets anywhere in a scenario. They are used to provide an overall measurement and they apply to an entire scenario (as opposed to an attribute which provides the individual characteristic of a feature). Indicator values are automatically recalculated as you experiment with alternatives, and these values can be displayed in a chart. Indicators can help people choose alternatives that best match their objectives or desired outcomes. For example, an indicator might be used to evaluate costs, revenues, average household size, "community benefit", or total daily auto trips.